<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id='app'>{{message}}</div>
    <script src='../vue.js'></script>
    <script>
        let app=new Vue({
            el: '#app', //挂载要管理元素
            data:{
                message: '你好啊'
            }
        });
    </script>
</body>
</html>